Acampe rigida

Also known as: The Stiff Acampe or In Thailand - Ueang tin tao - Ueang dawk makham in the subfamily: Epidendroideae

Native to: Bhutan Cambodia Guangxi - China Hong Kong Kenya Madagascar Sikkim - India Sri Lanka Thailand

General Information

The Stiff Acampe is a monopodial warm growing epiphytic orchid belonging to the sub family Epidendroideae native to Bhutan, Cambodia, China, Hong Kong, Kenya, Madagascar, India, Sri Lanka, and Thailand.

Plant Description

Monopodial. Grows to 60-90cm. Each new growth has numerous erect oblong shaped leaves that grow to 3.5-45cm long

Flowers

Numerous blossoms appear during Summer and Spring

Blooming Season

• Spring
• Summer

Substrate(s)

• Coarse
• Charcoal

Care Notes

These orchids like to be watered regulary, especially during warm weather, and prefer a well draining mix or also do well mounted, provided they can be watered daily or even many times a day.

These are quite a forgiving orchid, there are no special requirements to get this orchid to flower, just good care and consistent conditions. Larger plants may be more fussy and can react poorly to change; a poorly timed repotting, a pest infection or an unusually hot day can set them back for a couple of years. However, even plants that have been treated poorly can thrive, and if they are set back they often recover much stronger then they would otherwise be.

Climate

Grows at low to high elevations. Rainfall ranges from 13mm to 284mm per day, heaviest in August and lightest in January. Humidity ranges from 76% to 85%, highest in August and lowest in January. Temperature ranges from 7C to 30C, highest in June (22C to 30C) and lowest in January (7C to 16C).

Watering

These orchids prefer a constant supply of moisture, with a slight drying out between waterings. Saucers can be placed under pots to retain moisture during hot weather, however the saucers should be removed or let to dry every 1-2 weeks to prevent rot. Keep an eye on the plant especially in hot weather and look for cues of under/overwatering and adjust accordingly.

Fertiliser

Apply liquid based fertiliser per recommended directions. They can benefit from a high phosphate fertiliser leading up to flowering season, followed by a high nitrogen fertiliser when new growth appears, and a balanced fertiliser in other times. These orchids can also tolerate slow release fertiliser applied 1-2 pellets per cup (250ml) of media.

Apply fertiliser regularly at half strength year round. Use a high Nitrogen fertiliser during Spring and Summer. Use a high Phosphorous fertiliser during Summer.

Potting

These plants are quite forgiving and will do well repotted ever 2-3 years. The mix should be coarse, well draining, and allow space for air to move and for roots to grow. 

Alternatively, these plants will also do well mounted to tree fern or cork slabs, or mounted to trees.

Best time for repotting or mounting the orchids is the end of winter when new growths start to appear. Avoid repotting during hot weather,

This plant does very well in baskets or suspended pots